B3311331313231311331322331333132313233313232233133313331312312323221   >>    B331133131323131133132233133313231323331323223313331333131231232322   <<    B3311331313231311331322331333132313233313232233133313331312312323223   >>      B3311331313231311331322331333132313233313232233133313331312312323222   >>